08-12-2016
Mathematics

contestada

Solve the system of equation

Solve the system of equation class=

Respuesta :

08-12-2016

1. Combine the first and second equation, we get 2x+3z=-13

2. Combine the second and third equation, we get 3x+3z=-15

3. Multiply 2x+3z=-13 by -3 and 3x+3z=-15 by 2.

4. -6x-9z=39 and 6x+6z=-30

5. Combine them together.
-3z=9 z=-3

6. Plug-in the value back to our equation.

2x+3(-3)=-13
2x-9=-13
2x=-4
x=-2

X+y+z=-3
-2+y+-3=-3
y=2

Answer Link

Otras preguntas

Complete the following multiplication exercises.43 × 7 = 12 × 9 =10 × 6 = 9 × 7 =7 × 5 =6 × 3 = 0 × 8 = 30 × 3 =11 × 8 =73 × 2 =83 × 5 = 16 × 8 = 392 × 7 =29 ×

The South had much lower_____Rates then the north because fewer people attended school

I was wondering about Both questions

1,i am taking some food----- i get hungry. a, incase b, if c, incase of d, a and b 2, i will take my jacket. off--- it gets hot a, if b, incase 3, i dont --- a

An error log is a notebook or computer file where you A. list the mistakes you make in a paper. B. list both the mistakes you make in a paper and the errors y

Help and try to explain please, and thank you.

suppose you wanted to gather information about the different kinds of birds. What are two places you could go to find this kind of information?

Why did Judaism become a worldwide religion?

okkk thanks for the help!!! :)

What happens when a muscle contracts? a. Myosin heads attach to and pull on a series of actin-binding sites. b. Actin produces myosin and ATP. c. Calcium combin